Optimonk

It's a tool that helps websites get more visitors to take actions, like signing up for emails or buying products. It uses pop-ups, slide-ins, and banners to catch people's attention and encourage them to do something

Step 1: Click on Apps from the main menu of your store
Step 2: Then click on Install, then Add to My Store 
Step 3: Click on Link existing account 
Step 4: Go back to your Optimonk account
Step 5: Click on Profile then Settings
Step 6: Click on  API Keys
Step 7: Click on Generate API

 

Step 8: Click on Profile
Step 9: Click on Extras then API Keys
Step 10: Click on Create API
Step 11: Enter a name for the API Key, then click on Generate Key
Step 12: Copy the code and then return to your store to add it to the application 
Step 13: Add the code, then click on Link my account